Home / 20,029.94-27,640.86-11,077.51

Finding the Fourth Proportional to 20,029.94, 27,640.86 and 11,077.51

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Solution

The fourth proportional to 20,029.94, 27,640.86 and 11,077.51 is: 15,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.94 : 27,640.86 = 11,077.51 : x
  2. Step 2: Convert to fraction form
    20,029.94/27,640.86 = 11,077.51/x
  3. Step 3: Cross multiply
    20,029.94x = 27,640.86 × 11,077.51
  4. Step 4: Simplify right side
    20,029.94x = 306,191,903.06
  5. Step 5: Solve for x
    x = 306,191,903.06/20,029.94
  6. Step 6: Final answer
    x = 15,286.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.